/
drouting.c
4794 lines (4113 loc) · 130 KB
/
drouting.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* Copyright (C) 2005-2009 Voice Sistem SRL
*
* This file is part of Open SIP Server (OpenSIPS).
*
* DROUTING OpenSIPS-module is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* DROUTING OpenSIPS-module is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* For any questions about this software and its license, please contact
* Voice Sistem at following e-mail address:
* office@voice-system.ro
*
* History:
* ---------
* 2005-02-20 first version (cristian)
* 2005-02-27 ported to 0.9.0 (bogdan)
*/
#include <stdlib.h>
#include <stdio.h>
#include <assert.h>
#include <unistd.h>
#include "../../evi/evi.h"
#include "dr_load.h"
#include "prefix_tree.h"
#include "dr_bl.h"
#include "dr_db_def.h"
#include "dr_partitions.h"
#include "dr_api.h"
#include "dr_api_internal.h"
#define DR_PARAM_USE_WEIGTH (1<<0)
#define DR_PARAM_RULE_FALLBACK (1<<1)
#define DR_PARAM_STRICT_LEN (1<<2)
#define DR_PARAM_ONLY_CHECK (1<<3)
#define DR_PARAM_INTERNAL_TRIGGERED (1<<30)
#define DRD_TABLE_VER 6
#define DRR_TABLE_VER 3
#define DRG_TABLE_VER 2
#define DRC_TABLE_VER 2
#define PART_TABLE_VER 1
#define MAX_LEN_NAME_W_PART 510 /* max len of variable containing
avp_spec and partition name */
#define MI_NO_PART_S "Too many arguments (use_partitions is 0 so no parameter"\
" should be supplied to the MI function)"
#define MI_NO_PART_LEN (strlen(MI_NO_PART_S))
#define MI_PART_NAME_S "Partition"
#define MI_PART_NAME_LEN (strlen(MI_PART_NAME_S))
#define MI_LAST_UPDATE_S "Date"
#define MI_LAST_UPDATE_LEN (strlen(MI_LAST_UPDATE_S))
/* probing related stuff */
static unsigned int dr_prob_interval = 30;
static str dr_probe_replies = {NULL,0};
struct tm_binds dr_tmb;
str dr_probe_method = str_init("OPTIONS");
str dr_probe_from = str_init("sip:prober@localhost");
static int* probing_reply_codes = NULL;
static int probing_codes_no = 0;
/*** DB relatede stuff ***/
/* parameters */
static str db_url = {NULL,0};
static int dr_persistent_state = 1;
/* DRG use domain */
static int use_domain = 1;
int dr_default_grp = -1;
int dr_force_dns = 1;
/* internal AVP used to store serial RURIs */
static str ruri_avp_spec = str_init("$avp(___dr_ruri__)");
/* internal AVP used to store GW IDs */
static str gw_id_avp_spec = str_init("$avp(___dr_gw_id__)");
/* internal AVP used to store GW socket */
static str gw_sock_avp_spec = str_init("$avp(___dr_sock__)");
/* internal AVP used to store GW ATTRs */
static str gw_attrs_avp_spec = str_init("$avp(___dr_gw_att__)");
/* AVP used to store GW Pri Prefix */
static str gw_priprefix_avp_spec = { NULL, 0};
/* AVP used to store RULE IDs */
static str rule_id_avp_spec = {NULL, 0};
/* internal AVP used to store RULE ATTRs */
static str rule_attrs_avp_spec = str_init("$avp(___dr_ru_att__)");
/* AVP used to store RULE prefix */
static str rule_prefix_avp_spec = {NULL, 0};
/* AVP used to store CARRIER ID */
static str carrier_id_avp_spec = {NULL, 0};
/* internal AVP used to store CARRIER ATTRs */
static str carrier_attrs_avp_spec = str_init("$avp(___dr_cr_att__)");
/*
* global pointers for faster parameter passing between functions
* meaning: current script pvar to dump attrs in (NULL to ignore)
*/
static pv_spec_p rule_attrs_spec;
static pv_spec_p gw_attrs_spec;
static pv_spec_p carrier_attrs_spec;
/*
* if the attributes are not used at all in the script,
* do not store them in their internal AVPs at all --liviu
*/
static int populate_rule_attrs;
static int populate_gw_attrs;
static int populate_carrier_attrs;
/* statistic data */
int tree_size = 0;
int inode = 0;
int unode = 0;
static str attrs_empty = str_init("");
/* configuration loader from db specific stuff */
static str db_partitions_table = str_init("dr_partitions"); /* default url */
static str db_partitions_url;
//static int use_partitions = 0;
// int use_partitions = 0; /* by default don't use db for config */
static struct head_config {
str partition; /* partition name extracted from database */
str db_url;
str drd_table; /* drd_table name extracted from database */
str drr_table; /* drr_table name extracted from database */
str drc_table; /* drc_table name extracted from database */
str drg_table; /* drg_table name extracted from database */
str gw_priprefix_avp_spec; /* extracted from database - it can be NULL */
str rule_id_avp_spec; /* extracted from database - it can be NULL */
str rule_prefix_avp_spec; /* extracted from database - it can be NULL */
str carrier_id_avp_spec; /* extracted from database - it can be NULL */
str ruri_avp_spec; /* extracted from database - has default value */
str gw_id_avp_spec; /* extracted from database - has default value */
str gw_sock_avp_spec; /* extracted from database - has default value */
str gw_attrs_avp_spec; /* extracted from database - has default value */
str rule_attrs_avp_spec; /* extracted from database - has default value */
str carrier_attrs_avp_spec; /* extracted from database - has default value */
struct head_config *next;
}* head_start = NULL,* head_end = NULL;
struct head_db * head_db_start = NULL,* head_db_end = NULL;
typedef struct param_prob_callback {
struct head_db * current_partition;
unsigned int _id;
}param_prob_callback_t;
typedef struct dr_partition {
union {
struct head_db * part;
gparam_p part_name;
} v;
enum dr_partition_type { DR_PTR_PART, DR_GPARAM_PART, DR_NO_PART } type;
} dr_partition_t;
typedef struct dr_part_group {
dr_partition_t * dr_part;
dr_group_t * group;
} dr_part_group_t;
static dr_part_group_t * default_part; /* for do_routing, used when
use_partitions = 0 */
typedef struct dr_part_old {
dr_partition_t *dr_part;
gparam_p gw_or_cr; /* gateway or carrier */
} dr_part_old_t;
typedef struct dr_part_cr {
gparam_p part;
gparam_p cr;
} dr_part_cr_t;
typedef struct dr_part_gw {
gparam_p part;
gparam_p gw;
} dr_part_gw_t;
static int get_config_from_db();
static int add_head_config();
static int add_head_db();
static int db_load_head(struct head_db*); /* used for populating head_db with
db connections and db funcs */
static void trim_char(char**);
static int fixup_dr_disable(void **,int);
//static struct head_db * get_partition(const str *);
static int _is_dr_gw_w_part(struct sip_msg* , char * , char* ,
int , struct ip_addr* , unsigned int);
static int use_next_gw_w_part( struct sip_msg*, struct head_db *, char *, char *, char *);
static int dr_disable(struct sip_msg *req, char * current_partition);
static int dr_disable_w_part(struct sip_msg *req, struct head_db *current_partition);
static int to_partition(struct sip_msg*, dr_partition_t *,
struct head_db **);
static inline int init_part_grp(dr_part_group_t **, struct head_db *,
dr_group_t*);
/* reader-writers lock for reloading the data */
static rw_lock_t *ref_lock = NULL;
static int dr_init(void);
static int dr_child_init(int rank);
static int dr_exit(void);
static int fixup_do_routing(void** param, int param_no);
static int fixup_next_gw(void** param, int param_no);
static int fixup_from_gw(void** param, int param_no);
static int fixup_is_gw(void** param, int param_no);
static int fixup_route2_carrier( void** param, int param_no);
static int fixup_route2_gw( void** param, int param_no);
static int do_routing(struct sip_msg* msg,dr_part_group_t*, int sort, gparam_t* wl);
static int do_routing_0(struct sip_msg* msg);
static int do_routing_1(struct sip_msg* msg, char * , char* id, char* fl, char* wl,
char* rule_att, char* gw_att, char* carr_att);
static int use_next_gw(struct sip_msg* msg,
char* rule_or_part, char* rule_or_gw, char* gw_or_carr, char * carr);
static int is_from_gw_0(struct sip_msg* msg);
static int is_from_gw_1(struct sip_msg* msg, char * part);
static int is_from_gw_2(struct sip_msg* msg, char * part, char* str1);
static int is_from_gw_3(struct sip_msg* msg, char *, char*, char* );
static int is_from_gw_4(struct sip_msg*, char*, char*, char*, char*);
static int goes_to_gw_0(struct sip_msg* msg);
static int goes_to_gw_1(struct sip_msg* msg, char * part, char* f1, char* f2, char* f3);
static int dr_is_gw(struct sip_msg* msg, char * part, char* str1, char* str2, char* str3,
char* str4);
static int route2_carrier(struct sip_msg* msg, char* cr_str,
char* gw_att_pv, char* carr_att_pv);
static int route2_gw(struct sip_msg* msg, char* gw, char* gw_att_pv);
static struct mi_root* dr_reload_cmd(struct mi_root *cmd_tree, void *param);
static struct mi_root* mi_dr_gw_status(struct mi_root *cmd, void *param);
static struct mi_root* mi_dr_cr_status(struct mi_root *cmd, void *param);
static struct mi_root* mi_dr_number_routing(struct mi_root *cmd_tree, void *param);
static struct mi_root* mi_dr_reload_status(struct mi_root *cmd_tree, void *param);
/* event */
static str dr_event = str_init("E_DROUTING_STATUS");
static event_id_t dr_evi_id;
/*
* Exported functions
*/
static cmd_export_t cmds[] = {
{"do_routing", (cmd_function)do_routing_0, 0, 0, 0,
REQUEST_ROUTE|FAILURE_ROUTE|LOCAL_ROUTE},
{"do_routing", (cmd_function)do_routing_1, 1, fixup_do_routing, 0,
REQUEST_ROUTE|FAILURE_ROUTE|LOCAL_ROUTE},
{"do_routing", (cmd_function)do_routing_1, 2, fixup_do_routing, 0,
REQUEST_ROUTE|FAILURE_ROUTE|LOCAL_ROUTE},
{"do_routing", (cmd_function)do_routing_1, 3, fixup_do_routing, 0,
REQUEST_ROUTE|FAILURE_ROUTE|LOCAL_ROUTE},
{"do_routing", (cmd_function)do_routing_1, 4, fixup_do_routing, 0,
REQUEST_ROUTE|FAILURE_ROUTE|LOCAL_ROUTE},
{"do_routing", (cmd_function)do_routing_1, 5, fixup_do_routing, 0,
REQUEST_ROUTE|FAILURE_ROUTE|LOCAL_ROUTE},
{"do_routing", (cmd_function)do_routing_1, 6, fixup_do_routing, 0,
REQUEST_ROUTE|FAILURE_ROUTE|LOCAL_ROUTE},
{"do_routing", (cmd_function)do_routing_1, 7, fixup_do_routing, 0,
REQUEST_ROUTE|FAILURE_ROUTE|LOCAL_ROUTE},
{"use_next_gw", (cmd_function)use_next_gw, 0, 0, 0,
REQUEST_ROUTE|FAILURE_ROUTE|LOCAL_ROUTE},
{"use_next_gw", (cmd_function)use_next_gw, 1, fixup_next_gw, 0,
REQUEST_ROUTE|FAILURE_ROUTE|LOCAL_ROUTE},
{"use_next_gw", (cmd_function)use_next_gw, 2, fixup_next_gw, 0,
REQUEST_ROUTE|FAILURE_ROUTE|LOCAL_ROUTE},
{"use_next_gw", (cmd_function)use_next_gw, 3, fixup_next_gw, 0,
REQUEST_ROUTE|FAILURE_ROUTE|LOCAL_ROUTE},
{"use_next_gw", (cmd_function)use_next_gw, 4, fixup_next_gw, 0,
REQUEST_ROUTE|FAILURE_ROUTE|LOCAL_ROUTE},
{"next_routing", (cmd_function)use_next_gw, 0, 0, 0,
REQUEST_ROUTE|FAILURE_ROUTE|LOCAL_ROUTE},
{"next_routing", (cmd_function)use_next_gw, 1, fixup_next_gw, 0,
REQUEST_ROUTE|FAILURE_ROUTE|LOCAL_ROUTE},
{"next_routing", (cmd_function)use_next_gw, 2, fixup_next_gw, 0,
REQUEST_ROUTE|FAILURE_ROUTE|LOCAL_ROUTE},
{"next_routing", (cmd_function)use_next_gw, 3, fixup_next_gw, 0,
REQUEST_ROUTE|FAILURE_ROUTE|LOCAL_ROUTE},
{"is_from_gw", (cmd_function)is_from_gw_0, 0, 0, 0,
REQUEST_ROUTE|FAILURE_ROUTE|ONREPLY_ROUTE},
{"is_from_gw", (cmd_function)is_from_gw_1, 1, fixup_from_gw, 0,
REQUEST_ROUTE|FAILURE_ROUTE|ONREPLY_ROUTE},
{"is_from_gw", (cmd_function)is_from_gw_2, 2, fixup_from_gw, 0,
REQUEST_ROUTE|FAILURE_ROUTE|ONREPLY_ROUTE},
{"is_from_gw", (cmd_function)is_from_gw_3, 3, fixup_from_gw, 0,
REQUEST_ROUTE|FAILURE_ROUTE|ONREPLY_ROUTE},
{"is_from_gw", (cmd_function)is_from_gw_4, 4, fixup_from_gw, 0,
REQUEST_ROUTE|FAILURE_ROUTE|ONREPLY_ROUTE},
{"goes_to_gw", (cmd_function)goes_to_gw_0, 0, 0, 0,
REQUEST_ROUTE|FAILURE_ROUTE|BRANCH_ROUTE|LOCAL_ROUTE},
{"goes_to_gw", (cmd_function)goes_to_gw_1, 1, fixup_from_gw, 0,
REQUEST_ROUTE|FAILURE_ROUTE|BRANCH_ROUTE|LOCAL_ROUTE},
{"goes_to_gw", (cmd_function)goes_to_gw_1, 2, fixup_from_gw, 0,
REQUEST_ROUTE|FAILURE_ROUTE|BRANCH_ROUTE|LOCAL_ROUTE},
{"goes_to_gw", (cmd_function)goes_to_gw_1, 3, fixup_from_gw, 0,
REQUEST_ROUTE|FAILURE_ROUTE|BRANCH_ROUTE|LOCAL_ROUTE},
{"goes_to_gw", (cmd_function)goes_to_gw_1, 4, fixup_from_gw, 0,
REQUEST_ROUTE|FAILURE_ROUTE|BRANCH_ROUTE|LOCAL_ROUTE},
{"dr_is_gw", (cmd_function)dr_is_gw, 1, fixup_is_gw, 0,
REQUEST_ROUTE|FAILURE_ROUTE|ONREPLY_ROUTE|BRANCH_ROUTE|LOCAL_ROUTE|
STARTUP_ROUTE|TIMER_ROUTE|EVENT_ROUTE},
{"dr_is_gw", (cmd_function)dr_is_gw, 2, fixup_is_gw, 0,
REQUEST_ROUTE|FAILURE_ROUTE|ONREPLY_ROUTE|BRANCH_ROUTE|LOCAL_ROUTE|
STARTUP_ROUTE|TIMER_ROUTE|EVENT_ROUTE},
{"dr_is_gw", (cmd_function)dr_is_gw, 3, fixup_is_gw, 0,
REQUEST_ROUTE|FAILURE_ROUTE|ONREPLY_ROUTE|BRANCH_ROUTE|LOCAL_ROUTE|
STARTUP_ROUTE|TIMER_ROUTE|EVENT_ROUTE},
{"dr_is_gw", (cmd_function)dr_is_gw, 4, fixup_is_gw, 0,
REQUEST_ROUTE|FAILURE_ROUTE|ONREPLY_ROUTE|BRANCH_ROUTE|LOCAL_ROUTE|
STARTUP_ROUTE|TIMER_ROUTE|EVENT_ROUTE},
{"dr_is_gw", (cmd_function)dr_is_gw, 5, fixup_is_gw, 0,
REQUEST_ROUTE|FAILURE_ROUTE|ONREPLY_ROUTE|BRANCH_ROUTE|LOCAL_ROUTE|
STARTUP_ROUTE|TIMER_ROUTE|EVENT_ROUTE},
{"dr_disable", (cmd_function)dr_disable, 0, 0, 0,
REQUEST_ROUTE|FAILURE_ROUTE|ONREPLY_ROUTE},
{"dr_disable", (cmd_function)dr_disable, 1, fixup_dr_disable, 0,
REQUEST_ROUTE|FAILURE_ROUTE|ONREPLY_ROUTE},
{"route_to_carrier",(cmd_function)route2_carrier,1,fixup_route2_carrier, 0,
REQUEST_ROUTE|FAILURE_ROUTE|LOCAL_ROUTE},
{"route_to_carrier",(cmd_function)route2_carrier,2,fixup_route2_carrier, 0,
REQUEST_ROUTE|FAILURE_ROUTE|LOCAL_ROUTE},
{"route_to_carrier",(cmd_function)route2_carrier,3,fixup_route2_carrier, 0,
REQUEST_ROUTE|FAILURE_ROUTE|LOCAL_ROUTE},
{"route_to_gw", (cmd_function)route2_gw, 1,fixup_route2_gw, 0,
REQUEST_ROUTE|FAILURE_ROUTE|LOCAL_ROUTE},
{"route_to_gw", (cmd_function)route2_gw, 2,fixup_route2_gw, 0,
REQUEST_ROUTE|FAILURE_ROUTE|LOCAL_ROUTE},
{"load_dr", (cmd_function)load_dr, 0, 0, 0, 0},
{0, 0, 0, 0, 0, 0}
};
/*
* Exported parameters
*/
static param_export_t params[] = {
{"use_partitions", INT_PARAM, &use_partitions },
{"db_partitions_url", STR_PARAM, &db_partitions_url.s },
{"db_partitions_table", STR_PARAM, &db_partitions_table.s },
{"db_url", STR_PARAM, &db_url.s },
{"drd_table", STR_PARAM, &drd_table.s },
{"drr_table", STR_PARAM, &drr_table.s },
{"drg_table", STR_PARAM, &drg_table.s },
{"drc_table", STR_PARAM, &drc_table.s },
{"use_domain", INT_PARAM, &use_domain },
{"drg_user_col", STR_PARAM, &drg_user_col.s },
{"drg_domain_col", STR_PARAM, &drg_domain_col.s },
{"drg_grpid_col", STR_PARAM, &drg_grpid_col.s },
{"ruri_avp", STR_PARAM, &ruri_avp_spec.s },
{"gw_id_avp", STR_PARAM, &gw_id_avp_spec.s },
{"gw_priprefix_avp", STR_PARAM, &gw_priprefix_avp_spec.s },
{"gw_sock_avp", STR_PARAM, &gw_sock_avp_spec.s },
{"rule_id_avp", STR_PARAM, &rule_id_avp_spec.s },
{"rule_prefix_avp", STR_PARAM, &rule_prefix_avp_spec.s },
{"carrier_id_avp", STR_PARAM, &carrier_id_avp_spec.s },
{"force_dns", INT_PARAM, &dr_force_dns },
{"default_group", INT_PARAM, &dr_default_grp },
{"define_blacklist", STR_PARAM|USE_FUNC_PARAM, (void*)set_dr_bl },
{"probing_interval", INT_PARAM, &dr_prob_interval },
{"probing_method", STR_PARAM, &dr_probe_method.s },
{"probing_from", STR_PARAM, &dr_probe_from.s },
{"probing_reply_codes",STR_PARAM, &dr_probe_replies.s },
{"persistent_state", INT_PARAM, &dr_persistent_state },
{0, 0, 0}
};
/*
* Exported MI functions
*/
#define HLP1 "Params: none ; Forces drouting module to reload data from DB "\
"into memory; A return string is returned only in case of error."
#define HLP2 "Params: [ gw_id [ status ]] ; Sets/gets the status of a GW; "\
"If no gw_id is given, all gws will be listed; if a new status is give, "\
"it will be pushed to the given GW."
#define HLP3 "Params: [ carrier_id [ status ]] ; Sets/gets the status of a " \
"carrier; If no carrier_id is given, all carrier will be listed; if a " \
"new status is give, it will be pushed to the given carrier."
#define HLP4 "Params: [partition] [group_id] number ; List the gateways a "\
"number will match when searching through the rules from a specific group. "\
"The partition parameter must be defined only if use_partitions = 1."
#define HLP5 "Params: [partition]; List the time of the last dr_reload"\
" (load from database) for all partitions if no parameter is supplied, or"\
" for a partition given as parameter. If use_partitions is 0, you should"\
" not specify a partition."
static mi_export_t mi_cmds[] = {
{ "dr_reload", HLP1, dr_reload_cmd, 0, 0, 0},
{ "dr_gw_status", HLP2, mi_dr_gw_status, 0, 0, 0},
{ "dr_carrier_status", HLP3, mi_dr_cr_status, 0, 0, 0},
{ "dr_number_routing", HLP4, mi_dr_number_routing, 0, 0, 0},
{ "dr_reload_status", HLP5, mi_dr_reload_status, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0}
};
static module_dependency_t *get_deps_probing_interval(param_export_t *param)
{
if (*(int *)param->param_pointer <= 0)
return NULL;
return alloc_module_dep(MOD_TYPE_DEFAULT, "tm", DEP_ABORT);
}
static dep_export_t deps = {
{ /* OpenSIPS module dependencies */
{ MOD_TYPE_SQLDB, NULL, DEP_ABORT },
{ MOD_TYPE_NULL, NULL, 0 },
},
{ /* modparam dependencies */
{ "probing_interval", get_deps_probing_interval },
{ NULL, NULL },
},
};
struct module_exports exports = {
"drouting",
MOD_TYPE_DEFAULT,/* class of this module */
MODULE_VERSION,
DEFAULT_DLFLAGS, /* dlopen flags */
&deps, /* OpenSIPS module dependencies */
cmds, /* Exported functions */
0, /* Exported async functions */
params, /* Exported parameters */
0, /* exported statistics */
mi_cmds, /* exported MI functions */
0, /* exported pseudo-variables */
0, /* additional processes */
dr_init, /* Module initialization function */
(response_function) 0,
(destroy_function) dr_exit,
(child_init_function) dr_child_init /* per-child init function */
};
/** Probing Section **/
static int check_options_rplcode(int code)
{
int i;
for (i =0; i< probing_codes_no; i++) {
if(probing_reply_codes[i] == code)
return 1;
}
return 0;
}
static int dr_disable(struct sip_msg *req, char * param_part_name) {
str part_name;
struct head_db * current_partition = 0;
if( param_part_name!=NULL && fixup_get_svalue(req,
(gparam_p)param_part_name,
&part_name)==0 ) {
if( (current_partition = get_partition(&part_name))!= NULL) {
return dr_disable_w_part(req, current_partition);
} else {
LM_ERR("Given partition name <%*.s> was not found\n", part_name.len, part_name.s);
return -1;
}
} else {
if( use_partitions ) {
LM_ERR("Partition name is mandatory <%*.s>\n", part_name.len
,part_name.s);
return -1;
} else {
if( head_db_start==NULL ) {
LM_ERR(" Error while loading default converation from .cfg"
" file\n");
return -1;
}
return dr_disable_w_part(req, head_db_start);
}
}
return -1;/* unexpected ending */
}
static str dr_gwid_str = str_init("gwid");
static str dr_address_str = str_init("address");
static str dr_status_str = str_init("status");
static str dr_inactive_str = str_init("inactive");
static str dr_active_str = str_init("active");
static str dr_disabled_str = str_init("disabled MI");
static str dr_probing_str = str_init("probing");
static void dr_raise_event(pgw_t *gw)
{
evi_params_p list = NULL;
str *txt;
if (dr_evi_id == EVI_ERROR || !evi_probe_event(dr_evi_id))
return;
list = evi_get_params();
if (!list) {
LM_ERR("cannot create event params\n");
return;
}
if (evi_param_add_str(list, &dr_gwid_str, &gw->id) < 0) {
LM_ERR("cannot add gwid\n");
goto error;
}
if (evi_param_add_str(list, &dr_address_str, &gw->ip_str) < 0) {
LM_ERR("cannot add address\n");
goto error;
}
if (gw->flags&DR_DST_STAT_DSBL_FLAG) {
if (gw->flags&DR_DST_STAT_NOEN_FLAG)
txt = &dr_disabled_str;
else if (gw->flags&DR_DST_PING_DSBL_FLAG)
txt = &dr_probing_str;
else
txt = &dr_inactive_str;
} else {
txt = &dr_active_str;
}
if (evi_param_add_str(list, &dr_status_str, txt) < 0) {
LM_ERR("cannot add state\n");
goto error;
}
if (evi_raise_event(dr_evi_id, list)) {
LM_ERR("unable to send dr event\n");
}
return;
error:
evi_free_params(list);
}
static int dr_disable_w_part(struct sip_msg *req, struct head_db *current_partition)
{
struct usr_avp *avp;
int_str id_val;
pgw_t *gw;
lock_start_read( current_partition->ref_lock );
avp = search_first_avp( AVP_VAL_STR, current_partition->gw_id_avp, &id_val,0);
if (avp==NULL) {
LM_DBG(" no AVP ID ->nothing to disable\n");
lock_stop_read( current_partition->ref_lock );
return -1;
}
gw = get_gw_by_id( (*current_partition->rdata)->pgw_l, &id_val.s );
if (gw!=NULL && (gw->flags&DR_DST_STAT_DSBL_FLAG)==0) {
LM_INFO(" partition : %.*s\n", current_partition->partition.len,
current_partition->partition.s);
gw->flags |= DR_DST_STAT_DSBL_FLAG|DR_DST_STAT_DIRT_FLAG;
dr_raise_event(gw);
}
lock_stop_read( current_partition->ref_lock );
return 1;
}
static void dr_probing_callback( struct cell *t, int type,
struct tmcb_params *ps )
{
int code = ps->code;
pgw_t *gw;
int _id ;
struct head_db * current_partition;
if (!ps->param || !*ps->param) {
LM_CRIT("BUG - reply to a DR probe with no ID (code=%d)\n", ps->code);
return;
}
if( !((param_prob_callback_t*)*ps->param)->current_partition ) {
LM_CRIT("BUG - no partition supplied to callback function\n");
return ;
}
current_partition = ( (param_prob_callback_t*) *ps->param)->current_partition;
lock_start_read( current_partition->ref_lock );
_id = ((param_prob_callback_t*)*ps->param)->_id;
gw = get_gw_by_internal_id( (*(current_partition->rdata))->pgw_l, _id);
if (gw==NULL)
goto end;
if ((code == 200) || check_options_rplcode(code)) {
/* re-enable to DST (if allowed) */
if ( (gw->flags&DR_DST_STAT_NOEN_FLAG)!=0 || /* permanently disabled */
(gw->flags&DR_DST_STAT_DSBL_FLAG)==0) /* not disabled at all */
goto end;
gw->flags &= ~DR_DST_STAT_DSBL_FLAG;
gw->flags |= DR_DST_STAT_DIRT_FLAG;
dr_raise_event(gw);
goto end;
}
if (code>=400 && (gw->flags&DR_DST_STAT_DSBL_FLAG)==0) {
gw->flags |= DR_DST_STAT_DSBL_FLAG|DR_DST_STAT_DIRT_FLAG;
dr_raise_event(gw);
goto end;
}
end:
lock_stop_read( current_partition->ref_lock );
return;
}
static void param_prob_callback_free(void *param) {
shm_free(param);
}
static void dr_prob_handler(unsigned int ticks, void* param)
{
static char buff[1000] = {"sip:"};
/* do probing */
pgw_t *dst;
param_prob_callback_t *params;
dlg_t *dlg;
str uri;
struct head_db *it = head_db_start;
while( it!=NULL ) {
if (it->rdata==NULL || *(it->rdata)==NULL)
return;
lock_start_read( it->ref_lock );
/* go through all destinations */
for( dst = (*(it->rdata))->pgw_l ; dst ; dst=dst->next ) {
/* dst requires probing ? */
if ( dst->flags&DR_DST_STAT_NOEN_FLAG
|| !( (dst->flags&DR_DST_PING_PERM_FLAG) || /*permanent probing*/
( dst->flags&DR_DST_PING_DSBL_FLAG
&& dst->flags&DR_DST_STAT_DSBL_FLAG /*probing on disable*/
)
)
) {
continue;
}
memcpy(buff + 4, dst->ip_str.s, dst->ip_str.len);
uri.s = buff;
uri.len = dst->ip_str.len + 4;
/* Execute the Dialog using the "request"-Method of the
* TM-Module.*/
if (dr_tmb.new_auto_dlg_uac(&dr_probe_from, &uri, dst->sock, &dlg)!=0) {
LM_ERR("failed to create new TM dlg\n");
continue;
}
dlg->state = DLG_CONFIRMED;
params = shm_malloc(sizeof(param_prob_callback_t));
if( params==0 ) {
LM_ERR("no more shm memory!\n");
return;
}
params->_id = dst->_id;
params->current_partition = it;
if (dr_tmb.t_request_within(&dr_probe_method, NULL, NULL, dlg,
dr_probing_callback, (void*)params, param_prob_callback_free) < 0) {
LM_ERR("unable to execute dialog\n");
}
dr_tmb.free_dlg(dlg);
}
lock_stop_read( it->ref_lock );
it = it->next;
}
}
static void dr_state_flusher(struct head_db* hd)
{
static db_ps_t cr_ps=NULL, gw_ps=NULL;
pgw_t *gw;
pcr_t *cr;
db_key_t key_cmp;
db_val_t val_cmp;
db_key_t key_set;
db_val_t val_set;
if(!hd) {
LM_ERR(" Bug - no head supplied to dr_state_flusher\n");
}
/* is data avaialable? */
if (!hd || !(hd->rdata) || !(*hd->rdata))
return;
val_cmp.type = DB_STR;
val_cmp.nul = 0;
val_set.type = DB_INT;
val_set.nul = 0;
/* update the gateways */
if ((hd->db_funcs).use_table( (*hd->db_con), &(hd->drd_table)) < 0) {
LM_ERR("cannot select table \"%.*s\"\n", hd->drd_table.len, hd->drd_table.s);
return;
}
key_cmp = &gwid_drd_col;
key_set = &state_drd_col;
/* iterate the gateways */
for( gw=(*hd->rdata)->pgw_l ; gw ; gw=gw->next ) {
if ( (gw->flags & DR_DST_STAT_DIRT_FLAG)==0 )
/* nothing to do for this gateway */
continue;
/* populate the update */
val_cmp.val.str_val = gw->id;
val_set.val.int_val = (gw->flags&DR_DST_STAT_DSBL_FLAG) ? ((gw->flags&DR_DST_STAT_NOEN_FLAG)?1:2) : (0);
/* update the state of this gateway */
LM_DBG("updating the state of gw <%.*s> to %d\n",
gw->id.len, gw->id.s, val_set.val.int_val);
CON_PS_REFERENCE(*hd->db_con) = gw_ps;
if ( (hd->db_funcs).update(*hd->db_con,&key_cmp,0,&val_cmp,&key_set,&val_set,1,1)<0 ) {
LM_ERR("DB update failed\n");
} else {
gw->flags &= ~DR_DST_STAT_DIRT_FLAG;
}
}
/* update the carriers */
if ((hd->db_funcs).use_table( *hd->db_con, &(hd->drc_table)) < 0) {
LM_ERR("cannot select table \"%.*s\"\n", hd->drc_table.len, hd->drc_table.s);
return;
}
key_cmp = &cid_drc_col;
key_set = &state_drc_col;
/* iterate the carriers */
for( cr=(*hd->rdata)->carriers ; cr ; cr=cr->next ) {
if ( (cr->flags & DR_CR_FLAG_DIRTY)==0 )
/* nothing to do for this carrier */
continue;
/* populate the update */
val_cmp.val.str_val = cr->id;
val_set.val.int_val = (cr->flags&DR_CR_FLAG_IS_OFF) ? 1 : 0;
/* update the state of this carrier */
LM_DBG("updating the state of cr <%.*s> to %d\n",
cr->id.len, cr->id.s, val_set.val.int_val);
CON_PS_REFERENCE(*hd->db_con) = cr_ps;
if ( (hd->db_funcs).update(*hd->db_con,&key_cmp,0,&val_cmp,&key_set,&val_set,1,1)<0 ) {
LM_ERR("DB update failed\n");
} else {
cr->flags &= ~DR_CR_FLAG_DIRTY;
}
}
return;
}
/* Flushes to DB the state of carriers and gateways (if modified)
* Locking is done to protect the data consistency */
static void dr_state_timer(unsigned int ticks, void* param)
{
struct head_db * it;
it = head_db_start;
while( it!=NULL ) {
lock_start_read( it->ref_lock );
dr_state_flusher(it);
lock_stop_read( it->ref_lock );
it = it->next;
}
}
/*
* if none is succesfully loaded return
* -1, else return 0
*/
static inline int dr_reload_data_head( struct head_db *hd )
{
rt_data_t *new_data;
rt_data_t *old_data;
pgw_t *gw, *old_gw;
pcr_t *cr, *old_cr;
time_t rawtime;
new_data = dr_load_routing_info(hd, dr_persistent_state);
if ( new_data==0 ) {
LM_CRIT("failed to load routing info\n");
return -1;
}
lock_start_write( hd->ref_lock );
/* no more activ readers -> do the swapping */
old_data = *(hd->rdata);
*(hd->rdata) = new_data;
/* update the time of the last reload for the current partition */
time(&rawtime);
hd->time_last_update = rawtime;
lock_stop_write( (hd->ref_lock) );
/* destroy old data */
if (old_data) {
/* copy the state of gw/cr from old data */
/* interate new gws and search them into old data */
for( gw=new_data->pgw_l ; gw ; gw=gw->next ) {
old_gw = get_gw_by_id( old_data->pgw_l, &gw->id);
if (old_gw) {
gw->flags &= ~DR_DST_STAT_MASK;
gw->flags |= old_gw->flags&DR_DST_STAT_MASK;
}
}
/* interate new crs and search them into old data */
for( cr=new_data->carriers ; cr ; cr=cr->next ) {
old_cr = get_carrier_by_id( old_data->carriers, &cr->id);
if (old_cr) {
cr->flags &= ~DR_CR_FLAG_IS_OFF;
cr->flags |= old_cr->flags&DR_CR_FLAG_IS_OFF;
}
}
/* free old data */
free_rt_data( old_data, 1 );
}
/* generate new blacklist from the routing info */
populate_dr_bls((*(hd->rdata))->pgw_l);
return 0;
}
static inline int dr_reload_data( void ) {
struct head_db * it_head_db;
int ret_val = 0;
for( it_head_db=head_db_start; it_head_db!=NULL;
it_head_db=it_head_db->next ) {
if( dr_reload_data_head( it_head_db )!=0 )
ret_val = -1;
}
return ret_val;
}
#define dr_fix_avp_def_w_default( _pv_spec, _avp_id, _default, _p_name, _name)\
if(_pv_spec.s == NULL) { \
if(use_partitions) {\
_pv_spec.len = _default.len + _p_name.len;\
_pv_spec.s = shm_malloc((_pv_spec.len)*sizeof(char));\
memcpy(_pv_spec.s, _default.s, _default.len-1);\
memcpy(_pv_spec.s + _default.len - 1, _p_name.s, _p_name.len);\
_pv_spec.s[_pv_spec.len-1] = ')';\
LM_DBG("name with partition:%.*s\n",_pv_spec.len, _pv_spec.s);\
}\
else { \
shm_str_dup(&_pv_spec, &_default);\
}\
}\
dr_fix_avp_definition(_pv_spec, _avp_id, _name);
#define dr_fix_avp_definition( _pv_spec, _avp_id, _name) \
do { \
if (pv_parse_spec( &_pv_spec, &avp_spec)==0 \
|| avp_spec.type!=PVT_AVP) { \
_pv_spec.len = strlen(_pv_spec.s); \
LM_ERR("malformed or non AVP [%.*s] for %s AVP definition\n",\
_pv_spec.len, _pv_spec.s, _name); \
head_db_end->db_url.s = 0;\
goto skip;\
} \
if( pv_get_avp_name(0, &(avp_spec.pvp), &_avp_id, &dummy )!=0) { \
LM_ERR("[%.*s]- invalid AVP definition for %s AVP\n", \
_pv_spec.len, _pv_spec.s, _name); \
head_db_end->db_url.s = 0;\
goto skip;\
} \
} while(0)
#define add_partition_to_avp_name( _spec, _p_name, _name_w_part ) \
_name_w_part.len = _spec.len + _p_name.len; \
memcpy(_name_w_part.s, _spec.s, _spec.len);\
memcpy(_name_w_part.s + _spec.len, _p_name.s, _p_name.len);
static int cleanup_head_config( struct head_config *hd) {
LM_DBG("Cleanup started\n");
if( hd==NULL ) {
LM_CRIT(" Cleanup head_config failed. Null pointer supplied\n");
return -1;
}
if( hd->db_url.s ) {
shm_free( hd->db_url.s );
hd->db_url.s = 0;
}
if( hd->drd_table.s && hd->drd_table.s != drd_table.s) {
shm_free( hd->drd_table.s );
}
if( hd->drr_table.s && hd->drr_table.s != drr_table.s) {
shm_free( hd->drr_table.s );
}
if( hd->drc_table.s && hd->drc_table.s != drc_table.s) {
shm_free( hd->drc_table.s );
}
if( hd->drg_table.s && hd->drg_table.s != drg_table.s) {
shm_free( hd->drg_table.s );
}
if(hd->gw_priprefix_avp_spec.s)
shm_free(hd->gw_priprefix_avp_spec.s);
if(hd->rule_id_avp_spec.s)
shm_free(hd->rule_id_avp_spec.s);
if(hd->rule_prefix_avp_spec.s)
shm_free(hd->rule_prefix_avp_spec.s);
if(hd->carrier_attrs_avp_spec.s)
shm_free(hd->carrier_attrs_avp_spec.s);
if(hd->ruri_avp_spec.s)
shm_free(hd->ruri_avp_spec.s);
if(hd->gw_id_avp_spec.s)
shm_free(hd->gw_id_avp_spec.s);
if(hd->gw_sock_avp_spec.s)
shm_free(hd->gw_sock_avp_spec.s);
if(hd->gw_attrs_avp_spec.s)
shm_free(hd->gw_attrs_avp_spec.s);
if(hd->rule_attrs_avp_spec.s)
shm_free(hd->rule_attrs_avp_spec.s);
if(hd->carrier_id_avp_spec.s)
shm_free(hd->carrier_id_avp_spec.s);
return 0;
}
static int cleanup_head_db( struct head_db *hd) {
if(hd) {
if( hd->db_con && *(hd->db_con) ) {
hd->db_funcs.close(*(hd->db_con));
}
if( hd->ref_lock ) {
lock_destroy_rw( ref_lock );
}
if ( hd->rdata ) {
shm_free(hd->rdata);
hd->rdata = 0;
}
if ( hd->partition.s ) {
shm_free(hd->partition.s);
hd->partition.len = 0;